Mechanical pen



(No Model.) 5 Sheets-Sheet 1-.

I. HENESTROSA.

MECHANICAL PEN.

Patented Jan. 2, 1883.

(No Model.) I asheets-sneenz.

I. HENESTROSA.

MECHANICAL PEN.

No. 270,061. Patented Jan.2, 1883.

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5 Sheets-Sheet 3. I. HENBSTROSA.

(No Model.)

MEGHANIGAL PEN.

Patented Jan. 2, 1888.

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(No Model.) 5 Sheets-Sheet 4.

I. HENESTROSA.

MEGHANIUAL PEN.

ffgia Patented Jan. 2, 1383,

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(No Model. 5 Sheets-Sheet 5.

I HEN ESTR'OSA.

- v MECHANICAL PEN- i No. 270,061. r Patented JHJLZ, 1883.

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y I UNITED I STATES PATENT. OFFICE.

IGNACIO HENESTROSA, or MADRID, SPAIN.

MECHANICAL PEN.

SPECIFICATION forming part of Letters Patent No. 270,061, datedJ'anuary 2, 1583.

Application filed February 2,1882. (No model.) i

To all whom it may concern:

Be it known that I, IGNAGIO HENEsrRosA", asnbject of the King of Spain, and residing at Madrid, Spain, have invented certain Improvements in Mechanical Pens and Apparatus for Operating and Supporting the Same, of which the following is a specification.

M y in vention relates to improvements in the construction of mechanical stencil or crayon pens and devices for supporting and operating the same, as more fully described hereinafter.

In the accotn 'iany-ing drawings, Figure 1 is avertical section of one form of my stencilpen, and Figs. 2 and 3 views of modifications. Fig. 4 is a perspective view of one form of pen carrying and driving mechanism; Fig.5, a perspective view of another modification. Fig. 6 represents a. pen operating and supporting device in which the parts are adjustable and can be folded up, and Fig. 7 is a view showing the apparatus folded up into a smallcompass;

Figs. 8, 9, and 10, a side View, plan, and end view, respectively, of another modification; Figs. 11 and 12, views of further modifications.

. Referring to the views illustrating the construction of the stencil-pen, and more particularly to Fig. 1, it will be seen that the cylinder or case a, within which works the needle c, is screwed onto a forked head-piece, D. This cylinder is tapered at its lower end, and can be adjusted by screwing on the said head I), so as to allow the point of the needle to project beyond the tapered end of the case the requisite'distance, and the case is secured in position, after it has been adjusted, by means of aja-m-nuncr The needle a is carried by a yoke, E, the ends of whose arms are guided between lugs :20 or on the head D. This yoke carries an anti-friction roller, A, mounted on the conical points of set-screws in the yoke, and on this roller bear the rims of the grooved pulley B, which is mounted on conical points of set-screws bin the head piece D. The rims b of this pulley are cam-shaped, so thatwhen it is rapidly rotated by a driving-belt passing around the grooved pulley the needle is rapidly reciprocated, the spring r keeping the rollerAin contact with the rims of the pulley. The modification shown in Fig. 2 diifers from that shown in Fig.1 only in that the guide-lugs m a for the ends of theyoke E are arranged on the head D close to the screwpolnts for the pulley B.

In the modification 3 a bn ttou.'A, is

substituted for the yoke E and anti friction roller A, and the grooved pulleyB is provided only on one side with a cam,-b which acts onthe button A. A projection on the side of will this button is guided between lugs it on one side of the head D, so as to keep the needlein posit on to be properly acted on by the cam.

Thedriving-cord, which passes around the pul-,

ley B of the pen, is preferably elastic, of rubber or metal, and receives movement from an overhead long cylinder, so as to support the pen in an upright position, while permitting free movement of the pen over the surface of the work. V i

In Fig. 4 I have shown one form of support and driving mechanism. On the table K, supporting the material to be stenciled or worked on, is an upright post, S, having a horizontal portion, 8, with bearings for a horizontal cylinder, G, of wood, or metal. The elastic driving cord or band passes over this cylinder overhanging the table, so as to support the pen in a nearly vertical position, as indicated in Fig. 4, and the belt can traverse the cylinder lon gitudinally, as the movement of the pen may require. Thiscylinderreceivesmotionthrough the medium of a band or beltfrom awheel, C, on the crank-shaft (J operated by treadles q below the table to be readily manipulated by the operators feet. y

In Fig.5 the support S s and cylinder 0 are shown as mounted on an ordinary writing or office desk, the support being provided with a screw-clamp at its base to permit its being secured to the edge of the table or-desk and allow of its removal. The cylinder 0 in this caseis shown as receiving movement from a small electric or clock-work motor, M, on the desired height by a set-screw, 10.

Fig. 6, or may be folded up into a small compass, as in Fig. 7.

A hollow standard, P, having three or four feet to form a firm support, carries bearings 'i'or a crank-shaft to be driven by a folding treadle, '0, through the rod 1;, connected to the crank. On this shaft is a grooved wheeho over which passes a band or cord, also passing over a pulley, 0 on the axis of the pen-driving cylinder 0. The frame 8, which carries this cylinder, is mounted on a vertical bar, 1?, fitting in the hollow standard P, so as to be adjustable vertically therein, and secured at the The bar P is provided with a hingejoinhp p, the two leaves of which may be secured to retain the parts in the positions Fig. 6 by a thumb-screw,

0n loosening the screws to and p and unshipping the driving-belt the bar P may he loweredwithin the hollow standard and the frame 8 and treadle a folded up against the standard, as shown in Fig. 7, so that the apparatus may be put out of the way when not in use.

When it is desired to increase the speed of the cylinder 0, over which passes the elastic band for driving the pen, intermediate pulleys may be used, as in the apparatus Figs. 8, 9, and 10. In this case the pulley v drives the pulley o, to which is secured a second pulley, N, which in turn imparts motion to the pulley if on the axis of the cylinder (3.

in the apparatus Fig. 11 motion is imparted to the cylinder 0 from a clock-work or. other an elastic arm, T, swiveled at s on the support S, so that it may be moved about to various positions, the cylinder 0 receiving motion from the driving-wheel 0 through the medium of a band passing over guide-pulleys d d.

The different methods of driving and supporting stencil-pens may be employed for other forms of pens than thoseI have shown in Figs. 1, 2, and 3, and the supporting mechanism may be used for carrying electrical stencil-pens. By using a crayon-holder and crayon instead of a needle in the pen the latter may be used for producing designs in stipple, different effects being produced by varying the speed of the pen.

I claim as my invention- 1. A stencil or crayon pen consisting of a hollow cylinder and head, in combination with a needle or crayon holder, a carrier having an arm or arms adapted to lugs 00 on said head, a spiral spring, and a cam-pulley acting on' said carrier, substantially as described.

2. The combination of a support, a cylinder, 0, and an elastic cord passing over saidcylinder, and having a free longitudinal movement on the latter, with a stencil or crayon pen driven by said elastic cord.

3. The combination of a hollow standard and driving mechanism with a bar, P, having a hinge-joint, and a frame, 8, carrying a drivingcylinder, 0, substantially as set forth.

In testimony whereof I have signed my name to this specification in the presence of two sub scribing witnesses.

IGNAOIO HENESTROSA.

Witnesses: 5

ALFRED COINY, EDWARD P. ll/IACLEAN. 

